I would advise anyone winning a substantial sum of money to think hard before making too many lifestyle changes.
£1.3 million is certainly enough to make a huge difference to these two, but it is not enough to live a jetset lifestyle for the rest of their lives. Buying a decent property, and generating a reasonable monthly income, yes. But by the time you've bought a nice house, and invested the rest (accepting that the first 2% or 3% of the income needs to be reinvested to stop the capital losing ground in real terms), it's not really enough to sit back on your laurels for the rest of your lives.
Personally, I would not want to work in McD's in the first place, so I certainly wouldn't want to go back. But to those who say they want to run their own business, or to invest in property, take it from some that has done both, it is not easy. Either road can lead to a honking great loss, if you aren't careful. Not everybody is emotionally or intellectually suited to running a business, and a fair percentage of businesses go broke, because the people running them aren't suited to it. The same goves for property, and especially for property abroad. Sure, it can be very lucrative, but it is also a minefield, and buying property where you know neither local laws, nor customs, is ten times the minefield.
If you're lucky enough to win a sum of money that can provide security and a bread-butter income for life, think twice before indulging in speculative ventures that, whilst they might make you another fortune, could also lose you the one you already have, and leave you no choice but to go back to working in McDonalds.